Discharge lamp, light source device, and projector

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9952489
SERIAL NO

15225208

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The disclosure relates to a discharge lamp including a light emitting tube having a discharge space therein, and a pair of electrodes disposed in the discharge space so as to be opposed to each other, wherein a changing rate of a cross-sectional area is equal to or lower than 200%. The changing rate is a rate of change of the cross-sectional area in every 0.25 mm in a direction along an optical axis of the light emitting tube. The cross-sectional area is an area of a plane perpendicular to the optical axis in a space between an outside shape of at least one of the pair of electrodes and an inside wall of the light emitting tube.

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yokoo, Tomohiro Matsumoto, JP 24 34

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